Projects 4 Way Technologies

Spicychat

Hardened a consumer AI platform for 3 million users — rate limits, personalized push, moderation, and premium TTS — without a rewrite.

  • 3M Users
  • 600k Premium TTS
  • AI Push + moderation

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What I shipped

  • Sliding-window rate limiting on critical endpoints, scaled for 3 million users.
  • Personalized AI-generated push notifications for marketing and engagement, unique per user, at the same scale.
  • AI character moderation combined with human moderation.
  • Text-to-Speech with moderation and WebSocket delivery for multiple voices, supporting 600k premium users.

Business output

  • Improved platform security and stability with rate limiting that holds at 3 million users.
  • Increased engagement and retention through personalized, AI-generated push.
  • Raised content quality and safety with AI + human character moderation.
  • Elevated the premium experience with moderated TTS and realtime voice over WebSockets.
  • Left a foundation that can grow without a significant architectural change.